A ranked round is a stroke play round that will count towards calculating your tier. If you are playing a ranked round and you decide to quit or you lose your internet connection your current game will be saved automatically. You will be prompted to continue your game or quit it the next time you begin a round.
A practice round is a stroke play round that does not count towards your tier ranking. In a practice round you have the ability to set the tees you play, the wind strength, the green speed and the number of holes you want to play.
WakeIsland: You made it sound like you wanted to play for credits
How did I make that sound like I wanted that?
WakeIsland: I was sensing sarcasm for practice mode.
Your senses are off...